File:Changes of temperature of world 500 1000 ad 01 01.png
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Summary
[edit]DescriptionChanges of temperature of world 500 1000 ad 01 01.png |
English: Changes of average temperature of world 500 - 1000 AD |
Date | |
Source | Own work |
Author | Merikanto |
Last Millennium Reanalysis (LMR) Project Data Page - version 2
https://atmos.washington.edu/~hakim/lmr/LMRv2/
LMR v2.1
global-mean temperature
https://atmos.washington.edu/%7Ehakim/lmr/LMRv2/gmt_MCruns_ensemble_full_LMRv2.1.nc
Reference of data source
Tardif, R., G. J. Hakim, W. A. Perkins, K. A. Horlick, M. P. Erb, J. Emile-Geay, D. M. Anderson, E. J. Steig, and D. Noone, 2019: Last Millennium Reanalysis with an expanded proxy database and seasonal proxy modeling. Clim. Past, 15, 1251-1273, doi:10.5194/cp-15-1251-2019.
Anderson, D. M., R. Tardif, K. Horlick, M. P. Erb, G. J. Hakim, D. Noone, W. A. Perkins, E. J. Steig, 2019: Additions to the Last Millennium Reanalysis multi-proxy database. Data Science Journal, 18(1), doi:10.5334/dsj-2019-002.
Python 3 code
-
- plot LMR data
- https://atmos.washington.edu/~hakim/lmr/LMRv2/
- Last Millennium Reanalysis (LMR) Project Data Page - version 2
- LMR v2.1
- python xarray
- 2023.05.13 0000.0000
-
import xarray as xr
import pandas as pd
import matplotlib.pyplot as plt
import matplotlib.colors as colors
from matplotlib.ticker import (MultipleLocator, AutoMinorLocator)
import matplotlib.ticker as tck
import datetime
import numpy as np
from scipy import interpolate
import scipy.signal
import math as math
captioni="Mean temperature changes of world between 500 - 1000 AD"
- subtitle="deg C"
file_path = './data/gmt_MCruns_ensemble_full_LMRv2.1.nc'
- file_path = './data/nhmt_MCruns_ensemble_full_LMRv2.1.nc'
- file_path = './data/shmt_MCruns_ensemble_full_LMRv2.1.nc'
ds = xr.open_dataset(file_path)
k1=ds.gmt[:]
k2=np.array(k1)
- y=k2[:,1,1]
- y=np.mean(axis=1)
y=np.mean(k2, axis=(1, 2))
print(np.shape(y))
- quit(-1)
- for iy in range(100):
- for ix in range(20):
- y2=k2[:,ix,iy]
- plt.plot(y2,color="#000070", alpha=0.01, linewidth=1 )
yys1=[]
yys2=[]
for iy in range(100):
yys1.append(np.mean(k2, axis=2))
for iy in range(20):
yys2.append(np.mean(k2, axis=1))
print (np.shape(yys1[1]))
- quit()
- for iy in range(20):
- plt.plot(yys2[iy], color="#0000ff", alpha=0.01, linewidth=1 )
for iy in range(100):
plt.plot(yys1[iy], color="#8080ff", alpha=0.005, linewidth=1 )
plt.plot(y, color="#7f0000", alpha=0.8, linewidth=2)
- plt.grid(True)
plt.xlim(500,1000)
- plt.ylim(-0.5, 0.2)
- plt.ylim(-1, 1)
plt.ylim(-0.6, 0.4)
- plt.axhline(y = ylimit1, color = 'g', linestyle = ':', linewidth=2)
- plt.locator_params(axis='x', nbins=10)
- plt.axis.xaxis.set_minor_locator(MultipleLocator(5))
- plt.axes().xaxis.set_minor_locator(MultipleLocator(5))
- plt.axes().yaxis.set_minor_locator(tck.AutoMinorLocator())
plt.gca().xaxis.set_major_locator(plt.MultipleLocator(100))
plt.gca().xaxis.set_minor_locator(plt.MultipleLocator(20))
- plt.gca().yaxis.set_major_locator(plt.MultipleLocator(100))
- plt.gca().yaxis.set_minor_locator(plt.MultipleLocator(10))
plt.grid(which='major', linestyle=':', linewidth='0.5', color='blue', alpha=.5)
- Customize the minor grid
plt.grid(which='minor', linestyle=':', linewidth='0.5', color='green', alpha=.5)
plt.title(captioni, fontsize=18, color="#0000af")
- plt.suptitle(subtitle,fontsize=14)
plt.xlabel('Year AD', color="darkgreen", fontsize=21)
plt.ylabel("Delta T deg Celsius", color="darkgreen", fontsize=21)
plt.xticks(fontsize=17)
plt.yticks(fontsize=17)
- plt.gca().invert_yaxis()
- mng = plt.get_current_fig_manager()
- mng.window.state('zoomed')
plt.savefig('figure.svg')
plt.show()
quit(-1)
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:29, 13 May 2023 | 1,511 × 715 (159 KB) | Merikanto (talk | contribs) | Uploaded own work with UploadWizard |
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